CVE-2025-38283 hisi_acc_vfio_pci: bugfix live migration function without VF device driver
A null pointer dereference in the Linux kernel's HiSilicon accelerator driver causes a crash during live migration if the VF driver is missing.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2025-38283?
CVE-2025-38283 is a high-severity vulnerability in Linux kernel, published on 10 Jul 2025. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
In the Linux kernel, the following vulnerability has been resolved:
hisi_acc_vfio_pci: bugfix live migration function without VF device driver
If the VF device driver is not loaded in the Guest OS and we attempt to perform device data migration, the address of the migrated data will be NULL. The live migration recovery operation on the destination side will access a null address value, which will cause access errors.
Therefore, live migration of VMs without added VF device drivers does not require device data migration. In addition, when the queue address data obtained by the destination is empty, device queue recovery processing will not be performed.
Which versions are affected by CVE-2025-38283?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2025-38283?
Apply the vendor's patch.
Is CVE-2025-38283 being exploited?
There is no known exploitation of CVE-2025-38283 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as AZL-64931, BELL-CVE-2025-38283, DEBIAN-CVE-2025-38283, GHSA-69p8-9933-rxvc, ROOT-OS-DEBIAN-12-CVE-2025-38283, ROOT-OS-UBUNTU-2404-CVE-2025-38283 and 1 more.